The Original Backnobber is hand crafted from a steel bar, bent in the shape of an S with wooden balls, one relatively small and one somewhat larger, permanently affixed to each end. The tool is used by hooking the device over a shoulder or under an arm and using its leverage to apply direct, deep, steady pressure to trigger points in the muscles of the neck, shoulders and upper and lower back or any large or small muscle in the body where a trigger point might occur. This pressure followed by careful, regular stretching and strengthening excercises can, over time, significantly reduce tension and pain in soft tissue and increase range of motion and overall function. The Original Backnobber Long Size The Long size Backnobber measures approximately 29 inches in overall length. Its curves are the same diameter as the regular Backnobber, and it can be used effectively by most people. However, its extra length is appreciated by people who are over six feet tall.